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SpatEntropy (version 2.2-4)

Spatial Entropy Measures

Description

The heterogeneity of spatial data presenting a finite number of categories can be measured via computation of spatial entropy. Functions are available for the computation of the main entropy and spatial entropy measures in the literature. They include the traditional version of Shannon's entropy (Shannon, 1948 ), Batty's spatial entropy (Batty, 1974 ), O'Neill's entropy (O'Neill et al., 1998 ), Li and Reynolds' contagion index (Li and Reynolds, 1993 ), Karlstrom and Ceccato's entropy (Karlstrom and Ceccato, 2002 ), Leibovici's entropy (Leibovici, 2009 ), Parresol and Edwards' entropy (Parresol and Edwards, 2014 ) and Altieri's entropy (Altieri et al., 2018, ). Full references for all measures can be found under the topic 'SpatEntropy'. The package is able to work with lattice and point data. The updated version works with the updated 'spatstat' package (>= 3.0-2).

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Version

Install

install.packages('SpatEntropy')

Monthly Downloads

275

Version

2.2-4

License

GPL-3

Maintainer

L. Altieri

Last Published

November 17th, 2023

Functions in SpatEntropy (2.2-4)

shannonZ

Shannon's entropy of the transformed variable \(Z\).
turinW

Observation window for Turin urban data.
varshannonZ

Estimated variance of Shannon's entropy of \(Z\).
varshannon

Estimated variance of Shannon's entropy.
turin

Turin urban data.
areapart

Area partition.
bologna

Bologna urban data.
leibovici

Leibovici's entropy.
oneill

O'Neill's entropy.
karlstrom

Karlstrom and Ceccato's entropy.
batty

Batty's entropy.
parredw

Parresol and Edwards' entropy.
bolognaW

Observation window for Bologna urban data.
raintrees2

Rainforest tree data 2.
raintrees

Rainforest tree data 1.
contagion

Li and Reynolds' relative contagion index.
SpatEntropy

SpatEntropy: a package for computing spatial entropy measures.
altieri

Altieri's spatial entropy.
shannon

Shannon's entropy.
raintreesCOV

Covariates for the rainforest tree data.
bolognaTess

Municipalities' administrative borders for Bologna urban data.
turinTess

Municipalities' administrative borders for Turin urban data.